I went through several sets of Allmakes mounts. IMO they're junk for any rig which sees anything more than a paved road. Finally got the QTs (didn't know about the MIT's or I would have inquired) and am done with torn motor mounts.
Now, for fair warning, you will feel more vibration (for lack of a better word) in the vehicle since the QT mounts have very little (if really any) absorption ability. But the tradeoff is that they sure as hell won't fail.